/Engine/Source/Runtime/SlateCore/Public/Widgets/SBoxPanel.h
typedef TBaseDelegate_FourParams< [FReply](API\Runtime\SlateCore\Input\FReply), const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) &, const [FPointerEvent](API\Runtime\SlateCore\Input\FPointerEvent) &, int32, [SVerticalBox::FSlot](API\Runtime\SlateCore\Widgets\SVerticalBox\FSlot) * > FOnDragAndDropVerticalBoxDragDetected